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Cycles: Avoid per-split memory allocation for the new references list

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This commit is contained in:
Sergey Sharybin 2016-02-21 16:46:16 +01:00
parent e69a0ab5fc
commit 63d017be90
2 changed files with 3 additions and 1 deletions
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1
intern/cycles/bvh/bvh_params.h
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@ -186,6 +186,7 @@ struct BVHSpatialStorage {
vector<BoundBox> spatial_right_bounds; vector<BoundBox> spatial_right_bounds;
BVHSpatialBin spatial_bins[3][BVHParams::NUM_SPATIAL_BINS]; BVHSpatialBin spatial_bins[3][BVHParams::NUM_SPATIAL_BINS];
vector<int> spatial_indices; vector<int> spatial_indices;
vector<BVHReference> spatial_new_refs;
}; };
CCL_NAMESPACE_END CCL_NAMESPACE_END

3
intern/cycles/bvh/bvh_split.cpp
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@ -220,7 +220,8 @@ void BVHSpatialSplit::split(BVHBuild *builder, BVHRange& left, BVHRange& right,
* Duplication happens into a temporary pre-allocated vector in order to * Duplication happens into a temporary pre-allocated vector in order to
* reduce number of memmove() calls happening in vector.insert(). * reduce number of memmove() calls happening in vector.insert().
*/ */
vector<BVHReference> new_refs; vector<BVHReference>& new_refs = storage_->spatial_new_refs;
new_refs.clear();
new_refs.reserve(right_start - left_end); new_refs.reserve(right_start - left_end);
while(left_end < right_start) { while(left_end < right_start) {
/* split reference. */ /* split reference. */